I did this change more than 3 years ago:

-      "descr": "{{if .DeliveryTime}}Livraison estimée : {{.DeliveryTime}} jours{{end}}",
+      "descr": {
+        "other": "{{if .DeliveryTime}}Livraison estimée : {{.DeliveryTime}} jours{{end}}",
+        "leftDelim": "<<",
+        "rightDelim": ">>"
+      },

I don't fully remember how it all works but it was a workaround to support golang templating {{}} inside translations. The problem is that pr #320 introduces a breaking change and all of a sudden I have this error:

reserved keys [other] mixed with unreserved keys [leftDelim rightDelim]

How do I fix this problem?